Here is the full list of all 48 Dead Island achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Explore the entire island.
Complete act 4.
Complete act 1 with 4 different characters.
Kill a Ram using tackle skill.
Complete act 3.
Set 10 zombies on fire simultaneously.
Play in a co-op team of 4 different playable characters.
Complete 5 quests with 3 co-op partners.
Kill 150 enemies using Analog Fighting controls.
Loot 25 Exceptional Weapons.
Kill 10 zombies in a row with headshots.
Use a large medkit to heal an injury of 5% or less.
Play with 10 different co-op partners for at least 15 minutes each.
Kill a Butcher using an axe
Find 120 collectibles.
Heal yourself with a medkit 100 times.
Reach level 50
Use a hammer to kill a series of 15 zombies without taking damage.
Kill 100 enemies with Fury attacks.
Save 5 people besieged by zombies.
Finish 75 quests cumulatively.
Complete act 2.
Kill 250 zombies using firearms.
Reach level 10.
Customize 25 weapons
Complete 25 quests while playing with at least one co-op partner.
Kill a Suicider with a grenade.
Reach level 25.
Find 60 collectibles.
Kill 250 zombies using edged melee weapons.
Kill 50 human enemies.
Kill 25 zombies with your bare fists.
Create weapons to rival the gods of fire or thunder.
Play Dead Island at least 28 days after starting it for the first time.
Kill an Infected with a grenade blast.
Complete act 1.
Kill 250 zombies with modified weapons.
Kill a zombie with 10 different melee weapons.
Kill 250 zombies using blunt melee weapons.
Kill 5 Infected in a row with a single blow.
Sever 100 limbs.
Travel a distance of 20 kilometers on foot.
Kill 50 zombies using a vehicle.
Drive a total distance of 10 kilometers.
Complete 5 quests in a single co-op game with the same partners.
Join another player's game.
Create a customized weapon.
Breach a locked door with the first blow.